Whether the water fee of 2 yuan a ton is expensive depends on the situation. As far as I know, in some big cities in China, such as Beijing and Shanghai, the price of residential water is usually around RMB per ton in 2 yuan, while the price of non-residential water is relatively high, around 2.5 yuan. Therefore, if the water price in these cities is 2 yuan per ton, it is not expensive. However, if it is in an area where water resources are scarce, or where governance costs are high, this price may be expensive. So we need to judge whether the water fee is expensive or not according to the actual situation in this region.